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Finding the Fourth Proportional to 372,510.96, 558,849.76 and 135,853.66

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Solution

The fourth proportional to 372,510.96, 558,849.76 and 135,853.66 is: 203,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,510.96 : 558,849.76 = 135,853.66 : x
  2. Step 2: Convert to fraction form
    372,510.96/558,849.76 = 135,853.66/x
  3. Step 3: Cross multiply
    372,510.96x = 558,849.76 × 135,853.66
  4. Step 4: Simplify right side
    372,510.96x = 75,921,785,286.12
  5. Step 5: Solve for x
    x = 75,921,785,286.12/372,510.96
  6. Step 6: Final answer
    x = 203,810.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.